Split-pulley clamp.



J. COBERT.

SPLIT PULLEY CLAMP.

APPLICATION FILED NOV. 23. 1916.

1,244,835. Patented Oct. 30,1917.

' [NVEN T OR.

dct 'Aw, Q- I ATTORNEY.

was

aosnrn corner, orivoarnmur'ron; nassecnusnrrrs.

sPLIT-BULLEY enema-r1 me a.

T0 at whom it may concern; f

Be it known that I, Josnrn coeuu'r, asubject of the Czar of Russia, residing at Northampton, in the countyof Hampshire and State of Massachusetts, have invented a new and useful Split-Pulley Clamp, of which the following is aspecificatioa My invention relates to improvements in clamping means for connecting the sections of split pulleys and securingthe same to shafts, and consists essentially of a head block adapted to be placed in position on, or contiguous to a partgof onesection offa split pulley that is adjacent to] the axis. of said pulley, arms pivotallyattached,to sa fil block and designed toengage parts of the other section of ,said pulley that also are adjacent to a i and a ighten ng 41 .",v

clamping screw orbolt tapped into and extending through said block and arranged to bearon said first-mentioned part, allas hereinafter set fortln 1 I Heretofore the sections] of as litpulley have been fastened together,,a ter being placedv on a shaft, by means of a pluralityy of bolts and nuts, except in some rare cases where split pulleys of special and unusual construction may have been constructed, and such means for fastening the sections together and securing them to the shaft are. cumbersome, compl cated and awkward, and IIGCQSSltiLlLGL the GXPBI1d1l311T$- O= much; time and labor, both in mounting and in dismounting the pulley, And the primaryiobinvention is to provide a clamp ject of my which can be applied to a split pulley of ordinary construction, little or no change or alteration of such pulley being required, to the end that the pulley can be mounted on its shaft and removed therefrom easily and quickly, the work being done frequently by a single man. I A further obj of this kind which is strong and durable and securely holds the pulley sections to gether and the pulley in place on the shaft.

This clamp does not appreciably afl'ect the balance of the split pulley with which it is used.

Other objects and advantages will appear in the course of the following description.

I attain the objects and secure the ad-' set is to provide clamp Specification-of Letters Patent. Patgnted 39 T Applicationfiled floveiiiber23, 1916. Sal-arml s; 1

which embodies practical'form of;

vention, showing such clamp applied .to a

split pulley and the latter; mounted 'on;a

shaft; andFig. 2, a top plan of said clamp.

; ,Similar reference numerals, designate s mllar parts throughout theseveralv ews, it

I In the first view a shaft i,s,repr,.esented at 1, with a split PllllGYIllOlllltQd, thereon, the cleavage plane or line appearing atl3.

Each ofthe two sections of the pulley comprises a semi-circularrim 7, a, hubportion of t ll ri con r cti and 1 air r am:

s nt tien .of it type 1en1 l y..mi% t 13* have more than four spokes, and' possi ss han that mber, an th e age l n might be changed so as to avoid cutting roping, importance so far as my invention is concerned and d0- .l10t affect the same many mportant particular.

t hub p on 8 f h pul yren. Oppos sidesf ofthe cleavage line 8, to engage such hub portions forcibly. and bind them see.

curely to; the shaft 1.- ,The sections of the. pulley are thus fastened; together and the pulley made upofsuch sections is made fast to theshaft' i The comprises block I arms 20. 20;piv oted to said block at;21 21,

and a screw or bolt 23. The blockrlShas offset or diagonally opposite projections 22 22 to which the arms 20 are pivotedat- 21, The projections 22 enable the block. 18 to be placed on one of the hub portions 8, between the spoke ,9vqand either of the a half spokes 10 connected with said portion,

. and the arms '20 to pass on opposite sides of: said spoke and half spoke. By thus forming the block 18 and arranging the arms 20, the weight of the clamp and the force exerted thereby are more evenly or uniformly distributed than would be the case if both arms extended on the same side of the spokes.

The arms 20 maybe curved inwardly or toward each other at their free terminals,

through any of the spokes, but th'esechanges c.

: -.My elamp is capable of being appliedto 1 which terminals consist in part of oppositely-directed hooks 19-19, the proportions of said arms with their hooks and the arrangement of the same being such that said books can be engaged with the spoke 9 and t 'i'nthe f 7 isln'ounted on the shaft and the block a other l iulleyisection is; then one of the half spokes of one pulley tion, When the block 18 is mounted on the hub portion 8 of the other pulley section.

When the hooks 19 are in engagement; With. the spoke 9 and a half spoke of the same. 7 section, said hooks, enter from apposite; 'dlfrections or opposite sides the space between said spoke and half spoke and adjacent to thehub portion 8, With which said spoke and, half spoke are connected; 7

Tho s lit pulleyis secured to the shaft 1 lowing manner-r One section: of the 18 is placed on the hubportion 8 of said section, with the projections22 and' the arms onopposite sides of the. spoke 9: and one ofthehalf'spokes 10- ofsuch section. The placed ihpositi'on; Wlien the second section is placed against the, shaft I and the first section, it

l's necessary soto position the. block 183 as by turningitto carry its projections aWa-y from the adjacentspoke 9 and half spoke bolt 23 is 110W screwed; tightly against the 10, that the spoke 9 and the half spoke 10 0f said second section, with which the hooks I9 are-te be'engaged; can' clear said hooks. The Block-1'8is'nextturnedg on thehub portion 8 Whiclrsupport-s it; until the arms 20contact With'the adjacent, spoke 9 and half spoke 10 which action introduces the hooks 19;" into the space between the spoke 9 and one of thel'ialfspokes 1 0 of-thje'second section; The;

hub section '8 which supports the block 18, with the result that the hooks l 9 are drawn forcibly into the angles or junctions at the places Where the spoke 9 and the half spoke 0, which isengaged by oneofsaid hooks,

unite-With the: hub portion 8 of the sec-- ond section; such angles or junctions being on adjacent edges of said spoke-and half spoke. The b WO sections are thus secured to 5 each other andto the shaft, just as inthe' other case. 1

Upoirlooseniiig the parts, by unscrewing the bolt- 23, anid turning the block 18 to re- 1 move the' hooks 19 from enga ingposition, 7 thepu'lley sections can be removed from the shaft in the samernanner'as before;

(iopiesidf thimpatentmay-be obtained; for five: cents each, by

- V Washington D;;G.?'

If necessary or desirable the sections S may be grooved, as; indicated at 24 24, to accommodate to better advantage the It is obvious that more or less change in the shape-,; size, arrangement, and construct1on of some or all of the parts and'melnbers ofmy clamp ma -be required to adapt the same to split pulleys ofdiflerent sizes and constructions, whereforelfldo not desire or intend toliin-itmyself to the construction of thexclamp' herein shown. and described, but

reSerYet-he right to any and allinodifications which fall Within; the scope of my clai'ms; p 7 a atIclarm-as my nvention, and deslre to securefby'LettersPatent, 1s-

1-. As an improved article of manufacture,

a split-.pull'y- ,cl-a-lnp comprising head blo'ck adapted torest on the hub portion of one pulley section-,' sa-id block having diagonallj -opposite projections consisting in part of oppositely directed hooks tofenter' p from oppositesides of the pulley and 611%; gage the hubportion of the other pulley section, and a t1'1readed memloer tapped into saidhead block and; adapted to bear on and tobe tightened against said firstenamcdthub portion; v t v 2; Asa-n improved article of manufacture; a split-pulley clamp comprisinga head-block adapted to rest onthe hub portion of one. pulley section, said lilockvhaving opposite projections, arms pii/otally at tached to said projections and curved to en gage the hub portions of both pulley secdons, such terminals consisting part of oppositely-directed hooks toenter from op- J addressing the Commissioner bfilatnts); 

